STRUCTURAL PROPERTIES OF LABORATORY MIXTURES CONTAINING FOAMED ASPHALT AND MARGINAL AGGREGATES

Four sands and one siliceous river gravel from various regions of Texas were stabilized with foamed asphalt to produce laboratory test specimens. The strength, stiffness, and stability of these specimens were measured by using common laboratory testing methods. The water susceptibility, temperature susceptibility, and fatigue performance of the asphalt paving mixtures were quantified. AASHO structural layer coefficients of the foamed asphalt were calculated and compared with those established for bituminous-stabilized bases at the AASHO Road Test. Equivalent thicknesses were determined for these foamed-asphalt mixtures. Based on available literature, foamed asphalt appears to be an economically attractive alternative for stabilization of pavement bases and subbases. However, laboratory results obtained in the study, which used marginal aggregates, suggest that foamed-asphalt mixtures have low stabilities and poor fatigue performance in comparison with conventional hot-mix paving materials. In addition, the foamed-asphalt mixtures have poor resistance to water deterioration. (Author)

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1983/911/911-015.pdf
• Record URL:
  • https://scholar.google.com/scholar_lookup?title=STRUCTURAL+PROPERTIES+OF+LABORATORY+MIXTURES+CONTAINING+FOAMED+ASPHALT+AND+MARGINAL+AGGREGATES&author=D.+Little&author=J.+Button&author=J.+Epps&publication_year=1983
• Availability:
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• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Characteristics of Bituminous Paving Mixtures to Meet Structural Requirements. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Little, Dallas N
  • Button, Joe W
  • Epps, Jon A
• Publication Date: 1983

Media Info

• Media Type: Print
• Features: Figures; Photos; References; Tables;
• Pagination: pp 104-113
• Monograph Title: Asphalt materials, mixtures, construction, moisture effects and sulfur
• Serial:
  • Transportation Research Record
  • Issue Number: 911
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Foamed asphalt; Gravel; Mechanical fatigue; Mechanical stability; Moisture content; Sand; Silicates; Stiffness; Strength of materials; Temperature
• Uncontrolled Terms: Susceptibility
• Subject Areas: Highways; Materials; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 00390798
• Record Type: Publication
• ISBN: 0309035546
• Files: TRIS, TRB
• Created Date: Dec 30 1984 12:00AM